【摘要】 <正> 砷钇矿是一种罕见的稀土砷酸盐矿物。与氟碳钙钇矿,磷钇矿、钍石、铌铁矿等共生。其分子式为Y（AsO₄）。在系统分析中主要测定TR₂O₃,As₂O₃,SiO₂,P₂O₈,Fe₂O₃,CaO,MgO,Al₂O₃,V₂O₅,ThO₂,U₃O₈,MnO等成份。砷钇矿的研究对成矿条件,稀土和砷的地球化学研究都是很有意义的。 砷钇矿中砷和稀土是主要成份。二氧化硅含8％左右,还有少量的磷和钒等其他元素。砷,磷,硅在测定时相互干扰严重。稀土,砷影响钒,铝的测定。更多还原

【Abstract】 In order to separate As, P and Si one an other, in practical analysis paper chromatographic method was used. A developer butyl acetone: methy isobutyl acetone:hydrofluoric acid:nitric acid= 10:10:4:1 was selected. The Rf values were 0.75, 0.4 and zero for As, P and Si respectively.Si, Al and V were separated from other elements with butyl acetone:methyl iso-butyl acetone:nittic acid:water =12.5:12.5:2.5:1.25 as chromatographic reagent, the Rf values of Si, Al and V all were zero. The analytical data were reported.更多还原